@article{article14c36a2d,
title   = {The shape theorem for the frog model},
author = {Alves, Oswaldo Scarpa Magalhães and Machado, Fábio Prates and Popov, Serguei Yu},
year = {2002},
doi = {10.1214/aoap/1026915614},
journal   = {Annals of Applied Probability}
}